A complete determination of New Physics parameters in leptonic decays of ${\mathbf{B}}_{\mathbf{s}}^0$

Basudha Misra, Jyoti Prasad Saha

Recently LHCb has measured the branching ratio of the rare decay of $B_s^0\to {\mu }^{+}{\mu }^{-}$ as $2.9_{-1.0}^{+1.1}\times 10^{-9}$ which is at par with the predicted standard mod…